How much to replace the clutch? on 1992 Nissan Pickup (D21)

I have 144,000 miles on the truck and the clutch isn't engaging until my foot is one the floor...there is a little slipping.....seems it must be time to get a new clutch. Am I right and how much can I expect to pay for a new clutch replacement

First check the clutch hydraulic system. Is the reservoir low, if so, fix the clutch master and slave. A new clutch on your truck takes about 4 hours ( if it's 2 wheel drive ) and the parts run about $300. Be sure to re-surface the flywheel and replace the rear main crank seal.